Experimental evaluation of the impact of processor faults on parallel applications

“…The study presented in [5] stressed out the importance of including additional error detection schemes in order to increase the error coverage. If the underlying hardware system only provides a limited capability of error detection then the most reasonable solution is to include high-level fault-tolerant mechanisms that do not require any modification to the hardware or the operating system.…”

Section: Introductionmentioning

confidence: 99%

Avoiding checkpoint contamination in parallel systems

Silva¹,

Silva

Digest of Papers. Twenty-Eighth Annual International Symposium on Fault-Tolerant Computing (Cat. No.98CB36224)

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Checkpointing and rollback recovery is a very effective technique to tolerate faults, provided the application is able to recover from a previous checkpoint and proceed with a failurefree computation. However, this technique may fall short if the checkpoint files are somehow contaminated by errors.This paper presents two mechanisms that may be used to determine if a committed checkpoint is error-free or not. These techniques can be used simultaneously for error detection and failure recovery. Both of them are based on checkpoint duplication: one makes use of spatial redundancy while the other is based on temporal redundancy. We discuss the main problems and trade-offs that have to be dealt with to implement these techniques. We then present a performance study that clearly shows the pros and cons of each one. As far as we know, this paper presents the first implementation of these mechanisms in a standard parallel computing system.

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Experimental evaluation of the impact of processor faults on parallel applications

Cited by 2 publications

References 21 publications

Value-driven resource assignment in object-oriented real-time dependable systems

Value-driven resource assignment in object-oriented real-time dependable systems

Avoiding checkpoint contamination in parallel systems

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